多年来传真显示出了其可靠性、灵活性和高效率，成为商业企业界办公通信的一种必要手段。目前，世界各大公司在传真费用上的支出占了其通信费用支出的很大比例。因此，价格低廉的基于ＩＰ网络的传真业务应运而生。与传统的传真业务相比，ＩＰ传真通信费用价格低廉，通过Ｉｎｔ Over the years, fax has shown its reliability, flexibility and high efficiency as a necessary means of business communications in the business community. At present, the expenses of facsimile expenses by major corporations in the world account for a large proportion of their communication expenses. Therefore, cheap IP-based fax services came into being. Compared with the traditional fax business, IP fax communications costs low through Int